Philip diehl



(ModeL P. DIEHL.

SEWING MACHINE SHUTTLE.

Patented Nov. 17, 1885.

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PHILIP DIEHL, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO THE SINGER MANUFACTURING COMPANY OF NEW JERSEY.

SEWlNG MACHINE SHUTTLE.

SPECIFICATIQN forming part of Letters Patent N0. 330,386, dated November 1'7, 1885.

Application filed July 13, 1885. Serial No. 171,559. (Model.)

To all whom it may concern:

Be it known that I, PHILIP DIEHL, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Sewing-Machine Shuttles, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of my invention is to provide a convenient and effective selfthreading sewing-machine shuttle, capable of carrying ,a comparatively large quantity of thread, and adapted for use in that class of oscillatingshuttle machines in which the loops of needlethread, after being caught by the point of the shuttle, are not materially enlarged for the passage of the body of the shuttle until the eye of the needle has risen above the work, thus permitting the thread to run freely through the eye ofthe needle when the loops are enlarged by the passage of the shuttlebody through them.

My new shuttle, while lighter and smaller in circumference than similar shuttles heretofore in use in the Singer oscillator machines, is capable of holding as much thread as the old shuttles, and admits of the use of shorter needles than have heretofore been required in the machines referred to.

In the drawings, Figures 1 and 2 are opposite side views of my shuttle. Figs. 3 and 4 are top views thereof with the beak in section, thebobbin-retaining latch being partly open in the latter figure. Fig. 5 is a sectional detail on line 5 5, Fig. 3. Fig, 6 is a rear end view of my shuttle. Fig. 7 is a sectional detail on line 7 7, Fig. 2. Fig. 8 is a detail per spective view of the tension-spring, and Fig.

0 9 is a side view of a preferred form of my invention.

My shuttle is segmental in form, so as to be adapted to work in a circular shuttle-race or to move in the arc of a circle. The body of the shuttle is a rigid piece of metal, and is provided with a chamber, 10, in which is placed, lengthwise of said body, the spool or bobbin 11, the latter being loosely held in said chamber between an outwardly-projecting frame or cradle, 12, of thin metal, attached .to one side of the shuttle, and an outwardlytle.

projecting pivoted latch, 13, attached to the other side thereof. The bobbin, being arranged lengthwise of the body of the shuttle, has its axis of rotation at right angles to the axis of rotation of the latter, as in Patent N 0. 274,359, so that the bobbinthread may be drawn off without having its tension disturbed by the movements of the shuttle.

By making the frame or cradle 12 and latch 13 of thin metal and separate from or independent of the body of the shuttle, and bulging or outwardly projecting, as shown, sufficient room is afforded for a comparatively large bobbin without making said shuttlebody so thick as to be unnecessarily heavy, and cheapness of construction is also secured. Moreoventhe outwardlyrprojecting latch is of convenient form to be taken hold of easily when it is to be lifted or swung outward to permit of the insertion or removal of the bobbin, and, as it is held in place by light springpressure, it can be easily lifted.

The frame or cradle 12 is attached to the shuttle-body by screws 9, and is preferably of thin spring metal and made open in its center for greater lightness, a part of the central por tion being (in the form of ourinvention shown) bent inwardly to form the latch-spring 14. The latch 13 is preferably provided with an angular portion, 15, at its pivoted end, against which the spring 14, bears, said latch being thus adapted to be retained in either an open or closed position by said spring.

The part 16, which forms the wall of the bobbin-chamber on the inner or straight side of the shuttle,has a flattened outer face, against which presses the tension-spring l7. Said spring is preferably held in place by a pin, 18, passing above or outside of a bend, 19, arranged in a recess, 20, in the body of the shut- The said retaining-pin thus serves as a pivot or fulcrum for the said spring 17, which, when thus arranged, becomes a lever-spring. To provide for the adjustment of the tension, a screw, 21, is tapped in the shuttle-body, said screw having a tapering or conical portion, 22, (shown in dotted lines in Fig. 3,) against which the rear end of said spring impinges, said rear end being preferably beveled off, as

shown in Fig. 8, to fit the said conical portion 7 of the screw. By forming the tensionspring with a bend, by which it is pivoted and held in the recess 20 of the shuttle, a pivoted spring, which may be stamped from thin metal, is pro duced, thus making the construction thereof much simpler and cheaper than would be possible with a pivoted spring having a thick end bored through for the pivot; also, by arranging the spring so that the end thereof impinges against the beveled tension-screw, and by beveling the end of said spring so as to conform it to the contiguous portion of the screw, a more compact arrangement of these parts is secured than would otherwise be possible. The wall 16 is provided with a thread-hole, 23, over which the tension-spring extends, said hole being preferably open or slotted to the edge of said wall, for convenience in threading. The wall 16 is also provided with a projecting rib, 24, having a slotted thread-delivery eye, 25, which is at or near the axis of rotation of the shuttle, the said eye being guarded by a thread-hook, 26, which cfiectually prevents the thread from escaping sidewise therefrom when it has once been drawn therein.

The beak 27 of the shuttle is preferably of uniform size, or nearly so, between the body of the shuttle and the tapering point. The point of the beak is preferably a continuation of the curved are forming the outer boundary or periphery of the shuttle. By thus forming the point atthe periphery of the shuttle,

instead of at a slight distance inside thereof, a shorter needle than has heretofore been used with this class of shuttles may be employed, as the extreme point of the shuttle will be as high or as near to the needle as possible, and

will catch the loops of needle-thread higher than heretofore.

The bobbin 11 need not be provided with pivots, but may rest looselyin the chamber 10, between the frame or cradle 12 and the bobbin-retaining latch 13. To thread the shut- I tle the bobbin-thread is first drawn into the hole 23 and then into the delivery-eye 25, in which latter it is securely retained by the guard-hook 26.

Instead of using the hook 26 for guarding the delivery-eye 25, a spring guard-arm, 28',

' (see Fig. 9,) formed integral with the latch 13,

and extending across the slot through which the thread is drawn into said eye, will preferably be employed. In this form of my invention the'point of the guard 28 rests in a and desire to secure by Letters Patent- 1. A sewing-machine shuttle having a rigid metallic body, an independent outwardlyprojecting frame or cradle secured to one side of said body, and an outwardly-projecting 7o latch pivoted to the opposite side thereof and provided with an angular portion at its pivoted end, combined with a spring bearing against said angular portion and thus adapted to retain the said latch in two positions, substantially as set forth.

2. A sewing-machine shuttle having a rigid body, an independent outwardly-projecting frame or cradle secured to one side of said body, and an outwardly-projecting latch pivoted to the opposite side thereof, combined with a spring pressing against said latch, substantially as set forth.

3. A sewing-machine shuttle having arigid body, an independent outwardly-projecting frame or cradle secured to one side of said body, and an outwardly-projecting spring pressed latch pivoted to the opposite side thereof, combined with a non-journaled or pivotless bobbin held loosely between said frame or cradle and latch, substantially asset forth.

4. A segmental shuttle for sewing-machines having a rigid body, a bobbiirretaining latch pivoted to one side of said body, a frame or cradle secured to the opposite side thereof, and a spring integral with said frame or cradle projecting inwardly and bearing against said latch, substantially as set forth.

5. Asegrnental shuttle for sewing-machines having on its inner or straight side a wall provided with a flattened outer face and a recess, combined with'a bent tension-spring pivoted in said recess and bearing against said face, and an adj usting-screw having a tapering or conical portion against which the end of said spring impinges, substantially as set forth.

6. A sewing-machine shuttle having a pivoted tensionspring provided with a beveled rear end, combined with an adjusting-screw having a tapering or conical portion against which said beveled end impinges, substantially as set forth.

7. A segmental sewing machine shuttle having a forwardly-projecting beak, and rearward of said beak a wall having a flattened outer face and a recess, combined with a bent tension-spring projecting within said recess and bearing against said face, and apivot-pin passing through said recess outside of the bend in said spring, substantially as set forth.

8. A segmental sewing-machine shuttle combined with a latch pivoted to one side of the shuttle-body, and having a guard-arm bearing against the side of said wall and exing against the side of said wall and extending tending across the slot leading into said deacross the slot leading into said deliveryeye livery-eye when said latch is closed substanwhen the said latch is closed, substantially as tially as set forth. set forth.

5 10. Asegmental shuttle for sewing-machines In testimony whereof I affix my signature in 15 having a forwardly-projecting beak, and rearpresence of two Witnesses.

ward of said beak a Wall provided with an PHILIP DIEHL. open thread-delivery eye, combined with a WVitnesses: latch pivoted to one side of the shuttle-body, J OSEPH F. J AQUITH,

10 said latch having an integral guard-arm bear- L. B. MILLER. 

